Although her explanation was concise, it was remarkably profound.

profound 由前缀 pro-（表示"向前"或"完全"）和词根 found（来自拉丁语 fundus，意为"底部"）组成，字面意思是"达到最底部的"，引申为"深刻的、深奥的"。这个词强调思想或见解的深度和洞察力。